Feature Management Platforms

Flagsmith

Flagsmith is an open source feature flag and remote configuration management service for controlling feature releases across multiple

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Overview

Flagsmith enables developers to create, manage, and toggle feature flags and remote configurations across web, mobile, and server applications, supporting granular user segmentation and A/B testing without redeploying code.

Updated Oct 21, 2026

14 things

What Flagsmith has

For developers

Programmatic access to the product's data and features for developers.
Run the software on your own servers instead of the vendor's cloud.
A machine-readable description of an API's endpoints and request formats.
A ready-made set of API requests you can import into Postman to test the product's API.
A toolkit that lets developers build on the product using their preferred programming language.

Hosting and storage

Vendor-provided online infrastructure for deploying and running software.
A vendor-operated service that runs and maintains software on its own infrastructure.
A dedicated cloud environment for running software and keeping its data separate.

Support

Get help from the support team by writing to them via email.
Real people you can contact when you need help with the tool.
Get help from the support team through a real-time chat window.
Guided setup and training to help new users get started with the tool.
Tailored, proactive around-the-clock support for teams with specialized needs.

Pricing

A product demonstration available to prospective customers who want to evaluate the tool.

12 features

Key Features

Flag targeting
Manage feature flags by development environment—and for individual users, a segment of users, or a percentage. This means quickly implementing practices like canary deployments.
Multivariate testing
Multivariate flags allow you to use a percentage split across two or more variations for precise A/B/n testing and experimentation. Integrate with your existing stack and send flag data to your analytics platform.
Remote configuration
As well as toggling a feature flag, with remote config you can customize values for your features, letting you deploy functional and visual changes to users without changing any code or pushing any updates.
Live app changes
Remote config lets you alter an application in real-time, without having to wait for a deployment or app store approval.
Feature adjustments
Configure different elements of your features—like checkout payment options or the color of a button—directly through Flagsmith and release the changes to users in just a few clicks.
User traits
Flagsmith makes it easy to store traits associated with your users without modifying your back-end or worrying about transferring data.
User segments
Create detailed user segments based on stored traits, then roll out features based on those segments.
Staged rollouts
Our platform lets you deploy features to a percentage of your user base.
Change tracking
Tracking changes to your application lets you pinpoint what edits were made when the error arose so you can undo the offending update.
Progressive delivery
Deploy AI-powered features behind feature flags and automate release processes
Production testing
Release to a subset of users and test in production before scaling
Ring deployments
Conduct ring deployments to minimise bugs in production

Pros and cons

Pros

Open source with transparent code and community testing.
Supports feature flagging and remote config across multiple platforms and languages.
Enables granular user segmentation and percentage rollouts for controlled feature releases.
Flexible deployment options including SaaS, private cloud, and on-premises.
Integrates with third-party analytics for A/B and multivariate testing.

Cons

Pricing details for enterprise plans require contacting sales.
Advanced security features like SAML and audit logs are limited to higher-tier plans.
Some SDKs may require additional setup for complex use cases.
Overage charges apply if API request limits are exceeded.
No explicit mention of offline flag evaluation capabilities.

As of October 2026

Pricing

Enterprise
Custom
on request

You?

Be the first to rate Flagsmith

Your review helps others make better decisions. No account needed. Takes about 10 seconds.

Featured Video

See Flagsmith at work before you try it.

Watch on YouTube

0 questions

Frequently Asked Questions

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Community reviews

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No written reviews yet. Be the first to share your experience.

Tried this tool? Share your experience.

Write a review

14 things

What Flagsmith has

For developers

Programmatic access to the product's data and features for developers.
Run the software on your own servers instead of the vendor's cloud.
A machine-readable description of an API's endpoints and request formats.
A ready-made set of API requests you can import into Postman to test the product's API.
A toolkit that lets developers build on the product using their preferred programming language.

Hosting and storage

Vendor-provided online infrastructure for deploying and running software.
A vendor-operated service that runs and maintains software on its own infrastructure.
A dedicated cloud environment for running software and keeping its data separate.

Support

Get help from the support team by writing to them via email.
Real people you can contact when you need help with the tool.
Get help from the support team through a real-time chat window.
Guided setup and training to help new users get started with the tool.
Tailored, proactive around-the-clock support for teams with specialized needs.

Pricing

A product demonstration available to prospective customers who want to evaluate the tool.

12 features

Key Features

Flag targeting
Manage feature flags by development environment—and for individual users, a segment of users, or a percentage. This means quickly implementing practices like canary deployments.
Multivariate testing
Multivariate flags allow you to use a percentage split across two or more variations for precise A/B/n testing and experimentation. Integrate with your existing stack and send flag data to your analytics platform.
Remote configuration
As well as toggling a feature flag, with remote config you can customize values for your features, letting you deploy functional and visual changes to users without changing any code or pushing any updates.
Live app changes
Remote config lets you alter an application in real-time, without having to wait for a deployment or app store approval.
Feature adjustments
Configure different elements of your features—like checkout payment options or the color of a button—directly through Flagsmith and release the changes to users in just a few clicks.
User traits
Flagsmith makes it easy to store traits associated with your users without modifying your back-end or worrying about transferring data.
User segments
Create detailed user segments based on stored traits, then roll out features based on those segments.
Staged rollouts
Our platform lets you deploy features to a percentage of your user base.
Change tracking
Tracking changes to your application lets you pinpoint what edits were made when the error arose so you can undo the offending update.
Progressive delivery
Deploy AI-powered features behind feature flags and automate release processes
Production testing
Release to a subset of users and test in production before scaling
Ring deployments
Conduct ring deployments to minimise bugs in production

Pros and cons

Pros

Open source with transparent code and community testing.
Supports feature flagging and remote config across multiple platforms and languages.
Enables granular user segmentation and percentage rollouts for controlled feature releases.
Flexible deployment options including SaaS, private cloud, and on-premises.
Integrates with third-party analytics for A/B and multivariate testing.

Cons

Pricing details for enterprise plans require contacting sales.
Advanced security features like SAML and audit logs are limited to higher-tier plans.
Some SDKs may require additional setup for complex use cases.
Overage charges apply if API request limits are exceeded.
No explicit mention of offline flag evaluation capabilities.

As of October 2026

Pricing

Enterprise
Custom
on request

You?

Be the first to rate Flagsmith

Your review helps others make better decisions. No account needed. Takes about 10 seconds.

Featured Video

See Flagsmith at work before you try it.

Watch on YouTube

0 questions

Flagsmith

Overview

What Flagsmith has

For developers

Hosting and storage

Support

Pricing

Key Features

Flag targeting

Multivariate testing

Remote configuration

Live app changes

Feature adjustments

User traits

User segments

Staged rollouts

Change tracking

Progressive delivery

Production testing

Ring deployments

Pros and cons

Pros

Cons

Pricing

Flagsmith pricing plans

Enterprise

Be the first to rate Flagsmith

Featured Video

Frequently Asked Questions

What Flagsmith has

For developers

Hosting and storage

Support

Pricing

Key Features

Flag targeting

Multivariate testing

Remote configuration

Live app changes

Feature adjustments

User traits

User segments

Staged rollouts

Change tracking

Progressive delivery

Production testing

Ring deployments

Pros and cons

Pros

Cons

Pricing

Flagsmith pricing plans

Enterprise

Be the first to rate Flagsmith

Featured Video

Frequently Asked Questions

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